Using Facebook authentication in ASP.NET MVC
Using GitHub authentication in ASP.NET MVC
Using Google+ authentication in ASP.NET MVC
Using LinkedIn authentication in ASP.NET MVC
Using Microsoft Live authentication in ASP.NET MVC
Using SalesForce authentication in ASP.NET MVC
Using Stack Exchange authentication in ASP.NET MVC
Using Twitter authentication in ASP.NET MVC
Using Yahoo authentication in ASP.NET MVC
Using Steam authentication in ASP.NET MVC
Using OpenID authentication in ASP.NET MVC